Table 1.

Permeability (P) and selectivity coefficients (α) determined for pure oxygen and nitrogen, as well as in air for various magnetic membranes.

Membrane		Permeation and Selectivity Coefficients Determined in						References
Matrix	Additive	Pure Gases			Air
		PO2 [Barrer]	PN2 [Barrer]	αid O2/N2	PO2 [Barrer]	PN2 [Barrer]	αrat O2/N2
PSf	CIP	8.47	1.25	6.78	-	-	-	[9]
PSf	Nd	2.05	0.42	4.88	-	-	-	[34]
PHFM	-	2.8 *	1.26 *	2.22	-	-	-	[33]
PHFM	γ-Fe2O3	1.9 *	1.66 *	1.14	-	-	-	[33]
CHFM	-	7.2 *	0.9 *	8.0	-	-	-	[33]
CHFM	θ-Fe3C	8.5·10−3 *	0.6·10−3 *	14.17	-	-	-	[33]
SPPO	MQFP-14-12	100.26	12.59	7.96	171.73	21.49	7.99	[31]
SPPO	Fe@MWCNT	12.88	2.14	6.03	13.45	2.61	5.15	[30]
HBPI	MQFP-B	90.93	15.58	7.23	232.41	26.75	8.69	[13]
LPI	MQFP-B	29.52	4.00	7.38	70.75	9.51	7.44	[14]
EC	MQFP-16-7	-	-	-	187.70	38.00	4.94	[15]
PPO	MQFP-16	185.30	37.84	4.90	281.96	64.73	4.36	[17,18]
EC	MQFP-14	111.62	45.48	2.44	21.94	3.55	6.18	[20]
PPO	MQFP-14	202.49	40.99	4.94	306.92	68.89	4.56	[19]

* In GPU.